import java.util.Scanner;

// Press Shift twice to open the Search Everywhere dialog and type `show whitespaces`,
// then press Enter. You can now see whitespace characters in your code.
public class Main {
    public static void main(String[] args) {
        System.out.println("请输入初始数据:");
        Scanner reader = new Scanner(System.in);
        double x = reader.nextDouble();
        x = x * 5;
        System.out.println("运算结果为:");
        System.out.print(x);

    }
}